[muxcable] Add grpc CLI support for transceiver presence retrieval from TRANSCEIVER_INFO table (sonic-net#171)

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#### What I did
xcvrd will now move the `status` field from the TRANSCEIVER_STATUS table to the TRANSCEIVER_STATUS_SW table. This is being done via the below PRs

[Update CMIS diagnostics monitoring HLD with TRANSCEIVER_STATUS_SW table by mihirpat1 · Pull Request sonic-net#1964 · sonic-net/SONiC](sonic-net/SONiC#1964)
[[xcvrd] Re-organize transceiver DOM and STATUS tables by mihirpat1 · Pull Request sonic-net#604 · sonic-net/sonic-platform-daemons](sonic-net/sonic-platform-daemons#604)

Therefore, the corresponding CLIs that rely on the TRANSCEIVER_STATUS table for retrieving transceiver presence need to be changed.

However, a more robust method to retrieve transceiver presence is by checking if the TRANSCEIVER_INFO table is present. Thus, the relevant code change will be made to address this.

#### How I did it
The CLI handler now looks at the TRANSCEIVER_INFO table to find transceiver presence

#### How to verify it
No change in output when command is executed after putting the change manaully
```
admin@sonic:~$ show mux grpc mux
Port Direction Presence PeerDirection ConnectivityState
---------- ----------- ---------- --------------- -------------------
Ethernet4 unknown True unknown unknown
Ethernet8 unknown True unknown unknown
Ethernet12 unknown True unknown unknown
Ethernet16 unknown True unknown unknown
Ethernet20 unknown True unknown unknown
Ethernet24 unknown True unknown unknown
Ethernet28 unknown True unknown unknown

```

For the case where TRANSCEIVER_INFO table is missing by manually deleteing it for example on Port Ethernet4

```
admin@sonic:~$ redis-cli -n 6 DEL "TRANSCEIVER_INFO|Ethernet4"
(integer) 1
admin@sonic:~$ show mux grpc mux
Port Direction Presence PeerDirection ConnectivityState
---------- ----------- ---------- --------------- -------------------
Ethernet4 standby False standby READY
Ethernet8 standby True standby READY

```
#### Previous command output (if the output of a command-line utility has changed)

#### New command output (if the output of a command-line utility has changed)

MSFT ADO - 32337615

Author: mssonicbld

show/muxcable.py

@@ -2177,7 +2177,7 @@ def get_grpc_cached_version_mux_direction_per_port(db, port):
     mux_info_full_dict[asic_index] = state_db[asic_index].get_all(
         state_db[asic_index].STATE_DB, 'MUX_CABLE_INFO|{}'.format(port))
     trans_info_full_dict[asic_index] = state_db[asic_index].get_all(
-        state_db[asic_index].STATE_DB, 'TRANSCEIVER_STATUS|{}'.format(port))
+        state_db[asic_index].STATE_DB, 'TRANSCEIVER_INFO|{}'.format(port)) or {}
 
     res_dir = {}
     res_dir = mux_info_full_dict[asic_index]
@@ -2186,10 +2186,9 @@ def get_grpc_cached_version_mux_direction_per_port(db, port):
     mux_info_dict["grpc_connection_status"] = res_dir.get("grpc_connection_status", None)
 
     trans_dir = {}
-    trans_dir = trans_info_full_dict[asic_index]
-    
-    status = trans_dir.get("status", "0")
-    presence = "True" if status == "1" else "False"
+    trans_dir = trans_info_full_dict.get(asic_index, None)
+
+    presence = "True" if trans_dir else "False"
 
     mux_info_dict["presence"] = presence
 

tests/mock_tables/state_db.json

@@ -793,6 +793,23 @@
         "status": "67",
         "error": "Blocking Error|High temperature"
     },
+    "TRANSCEIVER_INFO|Ethernet4": {
+        "type": "SFP28 25G Pluggable Transceiver",
+        "hardware_rev": "X.X",
+        "serial": "0123456789",
+        "manufacturer": "XXXX",
+        "model": "XXX",
+        "connector": "LC",
+        "encoding": "N/A",
+        "ext_identifier": "Power Class 1 (0.5W Max)",
+        "ext_rateselect_compliance": "N/A",
+        "cable_type": "Length Cable Assembly(m)",
+        "cable_length": "0.0",
+        "nominal_bit_rate": "0",
+        "specification_compliance": "sm_media_interface",
+        "vendor_date": "2021-11-19",
+        "vendor_oui": "XX-XX-XX"
+    },
     "TRANSCEIVER_STATUS|Ethernet4": {
         "status": "1",
         "error": "N/A",

tests/muxcable_test.py

@@ -390,15 +390,15 @@
 show_muxcable_grpc_muxdirection_active_expected_all_output = """\
 Port       Direction    Presence    PeerDirection    ConnectivityState
 ---------  -----------  ----------  ---------------  -------------------
-Ethernet0  active       False       active           READY
+Ethernet0  active       True        active           READY
 """
 
 show_muxcable_grpc_muxdirection_active_expected_all_output_json = """\
 {
     "HWMODE": {
         "Ethernet0": {
             "Direction": "active",
-            "Presence": "False",
+            "Presence": "True",
             "PeerDirection": "active",
             "ConnectivityState": "READY"
         }